2  * Test the ARM Performance Monitors Unit (PMU).
43 /* Some PMU events */
86 struct pmu {  struct
98 static struct pmu pmu;  variable
176 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_LC | PMU_PMCR_C | PMU_PMCR_P);  in pmu_reset()
284 	if (!pmu.nb_implemented_counters) {  in test_event_introspection()
295 	if (pmu.version >= ID_DFR0_PMU_V3_8_1) {  in test_event_introspection()
373 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_LC | PMU_PMCR_C | PMU_PMCR_P);  in pmu_reset()
388 	if (!pmu.nb_implemented_counters) {  in test_event_counter_config()
432 	if (pmu.nb_implemented_counters < nb_events) {  in satisfy_prerequisites()
434 			    pmu.nb_implemented_counters);  in satisfy_prerequisites()
452 	 * even if the PMU is configured to generate an overflow at  in pmevcntr_mask()
458 	if (pmu.version >= ID_DFR0_PMU_V3_8_5)  in pmevcntr_mask()
466 	if (overflow_at_64bits && pmu.version < ID_DFR0_PMU_V3_8_5) {  in check_overflow_prerequisites()
486 	implemented_counter_mask = BIT(pmu.nb_implemented_counters) - 1;  in test_basic_event_count()
502 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_LC | PMU_PMCR_C | PMU_PMCR_P | pmcr_lp);  in test_basic_event_count()
504 	report(get_pmcr() == (pmu.pmcr_ro | PMU_PMCR_LC | pmcr_lp), "pmcr: reset counters");  in test_basic_event_count()
545 	precise_instrs_loop(20, pmu.pmcr_ro | PMU_PMCR_E);  in test_basic_event_count()
574 	mem_access_loop(addr, 20, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_mem_access()
588 	mem_access_loop(addr, 20, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_mem_access()
630 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_sw_incr()
676 	precise_instrs_loop(22, pmu.pmcr_ro | PMU_PMCR_E);  in test_chained_counters()
688 	precise_instrs_loop(22, pmu.pmcr_ro | PMU_PMCR_E);  in test_chained_counters()
696 	precise_instrs_loop(22, pmu.pmcr_ro | PMU_PMCR_E);  in test_chained_counters()
719 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_E);  in test_chained_sw_incr()
738 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_E);  in test_chained_sw_incr()
785 		mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_mem_access_reliability()
821 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
834 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
847 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
854 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
871 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
879 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
898 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
907 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
924 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
931 	mem_access_loop(addr, COUNT, pmu.pmcr_ro | PMU_PMCR_E);  in test_chain_promotion()
982 	mem_access_loop(addr, COUNT_INT, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
985 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
992 	set_pmcr(pmu.pmcr_ro);  in test_overflow_interrupt()
1006 	mem_access_loop(addr, COUNT_INT, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
1008 	set_pmcr(pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
1014 	mem_access_loop(addr, COUNT_INT, pmu.pmcr_ro);  in test_overflow_interrupt()
1033 	mem_access_loop(addr, COUNT_INT, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
1041 	mem_access_loop(addr, COUNT_INT, pmu.pmcr_ro | PMU_PMCR_E | pmcr_lp);  in test_overflow_interrupt()
1168 	if (pmu.version == ID_DFR0_PMU_V3) {  in pmccntr64_test()
1178 /* Return FALSE if no PMU found, otherwise return TRUE */
1184 	pmu.version = get_pmu_version();  in pmu_probe()
1185 	if (pmu.version == ID_DFR0_PMU_NOTIMPL || pmu.version == ID_DFR0_PMU_IMPDEF)  in pmu_probe()
1188 	report_info("PMU version: 0x%x", pmu.version);  in pmu_probe()
1192 	report_info("PMU implementer/ID code: %#"PRIx32"(\"%c\")/%#"PRIx32,  in pmu_probe()
1198 	pmu.pmcr_ro = pmcr & 0xFFFFFF00;  in pmu_probe()
1199 	pmu.nb_implemented_counters =  in pmu_probe()
1202 		    pmu.nb_implemented_counters);  in pmu_probe()
1233 		printf("No PMU found, test skipped...\n");  in main()
1240 	report_prefix_push("pmu");  in main()
1251 	} else if (strcmp(argv[1], "pmu-event-introspection") == 0) {  in main()
1255 	} else if (strcmp(argv[1], "pmu-event-counter-config") == 0) {  in main()
1259 	} else if (strcmp(argv[1], "pmu-basic-event-count") == 0) {  in main()
1262 	} else if (strcmp(argv[1], "pmu-mem-access-reliability") == 0) {  in main()
1265 	} else if (strcmp(argv[1], "pmu-mem-access") == 0) {  in main()
1268 	} else if (strcmp(argv[1], "pmu-sw-incr") == 0) {  in main()
1271 	} else if (strcmp(argv[1], "pmu-chained-counters") == 0) {  in main()
1273 	} else if (strcmp(argv[1], "pmu-chained-sw-incr") == 0) {  in main()
1275 	} else if (strcmp(argv[1], "pmu-chain-promotion") == 0) {  in main()
1277 	} else if (strcmp(argv[1], "pmu-overflow-interrupt") == 0) {  in main()